topic Re: ESRI JavaScript API 3: show varouis FeatureLayers in one Layer in ArcGIS Server with JavaScript API Questions

ESRI JavaScript API 3: show varouis FeatureLayers in one Layer

CarstenMalchow — Wed, 05 Aug 2020 11:13:17 GMT

Hi,

I would like to use the FeatureServer of current Hurricanes to display the information in one single Layer.

This means represent the observed Track (Line), observed Position (Point), forcasted Track (Line), forcasted Positions (Point) and Error Cone (Polygon) in once. With a MapServer this is possibale, by using ArcGISDynamicMapServiceLayer and configuering the layerDefinitions. How to achive the same with a FeatureLayer in Frontend?

Kind regards

Carsten

Re: ESRI JavaScript API 3: show varouis FeatureLayers in one Layer

RobertScheitlin__GISP — Wed, 05 Aug 2020 12:23:18 GMT

Carsten,

You can not. A FeatureServer url is a single layer url and can not be made to act like a MapServer url.

Re: ESRI JavaScript API 3: show varouis FeatureLayers in one Layer

CarstenMalchow — Wed, 05 Aug 2020 12:32:35 GMT

Hi Robert,

thanks for your replay. How would be a possibale solution?

Re: ESRI JavaScript API 3: show varouis FeatureLayers in one Layer

CarstenMalchow — Wed, 05 Aug 2020 12:34:45 GMT

or can ic use a group Layer and hide the sub-layer in toc?

Re: ESRI JavaScript API 3: show varouis FeatureLayers in one Layer

RobertScheitlin__GISP — Wed, 05 Aug 2020 13:03:06 GMT

Carsten,

In the 3.x API there is no group layer so there is No solution in 3.x that I am aware of.

Re: ESRI JavaScript API 3: show varouis FeatureLayers in one Layer

CarstenMalchow — Wed, 05 Aug 2020 13:16:14 GMT

ok so if I just focus on lines e.g. and then I would work with a featureCollection. The source inside the FeatureCollection I would fill up with a addentlion request to the server and query for it.

Re: ESRI JavaScript API 3: show varouis FeatureLayers in one Layer

RobertScheitlin__GISP — Wed, 05 Aug 2020 13:22:28 GMT

??? I don't understand your question at all.

Re: ESRI JavaScript API 3: show varouis FeatureLayers in one Layer

CarstenMalchow — Wed, 05 Aug 2020 13:52:04 GMT

According the API documentation I would not use the URL direktly, insteadt of I would use the constructor witht FeatureCollectionObject FeatureLayer | API Reference | ArcGIS API for JavaScript 3.33

The first paramter is featureCollectionObject, there you can define a source/geometry. This I would like to obtain by performing a query against the Server like this: https://services9.arcgis.com/RHVPKKiFTONKtxq3/ArcGIS/rest/services/Active_Hurricanes_v1/FeatureServer//query?layerDefs=%…

Re: ESRI JavaScript API 3: show varouis FeatureLayers in one Layer

RobertScheitlin__GISP — Wed, 05 Aug 2020 14:23:49 GMT

Carsten,

OK what is your end goal in doing this versus using the url as one normally would?